Sierra 1500 2WD V6-4.3L VIN X (2004)
Fuel Tank Unit: Service and Repair
FUEL SENDER ASSEMBLY REPLACEMENT
TOOLS REQUIRED
J 44402 Fuel Tank Sending Unit Wrench
REMOVAL PROCEDURE
1. Remove the fuel tank.
2. Using J 44402, remove the sending unit lock ring.
NOTE: Do Not handle the fuel sender assembly by the fuel pipes. The amount of leverage generated by handling the fuel pipes could damage the
joints.
3. Remove the sending unit and seal. Discard the seal.
CAUTION: Drain the fuel from the fuel sender assembly into an approved container in order to reduce the risk of fire and personal injury.
Never store the fuel in an open container.
4. Clean the sending unit sealing surfaces.
INSTALLATION PROCEDURE
CAUTION: In order to reduce the risk of fire and personal injury that may result from a fuel leak, always replace the fuel sender gasket
when reinstalling the fuel sender assembly.
IMPORTANT: The fuel strainer must be in a horizontal position when the sending unit is installed in the tank. When installing the sending unit,
assure that the fuel strainer does not block full travel of the float arm.
